In the thread you have seen the title for, this is an excerpt from their post:
I have been experiencing hacker attacks since June. At first the attacks weren't through my Wordpress installations. I was running another classified ad program (one I'd had written for me using php scripts) and hackers used it to enter my domain and cause problems. I've been struggling since then to be sure that my site is secure.
I deleted that other classified ad program and bought Classipress, hoping it would solve my problems.
But yesterday and today all my efforts failed and my Classipress took two hacker attacks.
From that point they're really looking for tips and suggestions on how to make their website more secure to prevent this kind of thing, and obviously this isn't really theme specific..it's can apply to anyone who uses WordPress.. In their case they have been targeted before, so we don't know about this side of it either..